What is an ink curve?
Before understanding this problem, first understand the CMYK color matching and ICC regulations. CMYK is the initials of cyan, magenta, yellow, and black. Among them, black is black, and I am afraid to be confused with Blue. Use K instead. RGB is used in optics, that is, the three primary colors red, green, and blue can be used with any color, such as display color and other colors. In reality, CMYK is used for color matching, such as the printing industry. In theory, CMY can also be used with any color. Based on the fact that CMY color purity in production cannot reach the theoretical value, black K is used to mix and match, especially to modulate dark patterns.
Let ’s take a look at the ICC. People who know ISO will be more. ISO (International System of Units), such as one meter in length, is easier to say, but when applied to production, an absolute one meter is impossible to achieve, and there will always be errors. This requires a reference object to constrain or measure the length, and there is a unified measure of the United Nations that specifies a one-meter reference object. In this way, other so-called one-meter lengths are infinitely close to the reference object one meter to minimize errors. In the same way, ICC is the International Color Association, which specifies the color value of each color to unify the color ratio. Despite the color value, in the production of pigments, due to factors such as manufacturer, technology, production, etc., the same color color value is used together, and the same color will also be different.
UV printers use non-contact ink-jet inks on print media to present color patterns. There are thousands of nozzles in an ink nozzle with a size of about 1cm * 8cm. Each nozzle is smaller than the hair. The size of the ink droplets is measured by PL (piper liter), and 1 liter (L) is equal to 10 12 square picoliters (PL), that is, one litre equal to 110 billion picoliters, the ink droplet size ranges from a few picoliters to tens of picoliters, and the color composition of a group of colors is emitted by these nozzles The ink dots are piled up, and the UV printer software will make the accumulation of ink dots according to the preset pattern color to achieve the final color difference. In the production process, some colors such as gold and silver are mixed colors. The color effect printed by the production process will be different from the color drawn by the software, or there is distortion. At this time, an ink scheme, that is, an ink curve, needs to be made to match the actual Production needs.
After reading the above scenes, let's understand what is the ink curve?
Printing ink is simply a combination of pigment and solvent. If you use ink to print the ideal color, it will be affected by the three factors of the ink itself, the printer, and the printing medium. Generally speaking, the ink curve is the ink output device (UV printer, etc.) according to the color of the printing medium to select a specific ratio of ink output scheme to achieve the desired color effect. A set of pre-determined programs send a sequence command to the printer during printing, which tells the printer what color ink should be used and how much ink is used to combine the color points on the job pattern.
So is the ink curve important in actual production?
Below we have a detailed understanding of the ink curve:
1. The ink curve is a kind of ink output scheme that a UV printer uses a certain ink ratio to print on a certain medium, and each printer has a default ink output scheme
2. The commonly mentioned ink CMYK color is the printing standard 4 color, a high-quality ink, each color should be close to the theoretically printed color. However, there are some differences in the colors of inks on the actual market. This difference is caused by different ink raw materials, production process technology, and whether the printing color standards are strictly followed.
3. The curve of an ink is only for the ink output scheme that the ink is used for a certain printer to print on a certain medium. In theory, any factor of the ink, printer, and medium changes, and then use the same The ink output scheme will have different output results, and the degree of difference may be large or small. For a variety of personalized printing, using one of the ready-made ink curves, as far as your specific print job output is concerned, it may not necessarily have the best print output result. For each specific printing, a new ink delivery scheme, that is, a new ink curve, needs to be newly given. In fact, when there is no specific curve given for a specific print job, an existing ink curve is not very meaningful to the user. At this time, the ink curve intelligence is used as a reference.
4. The UV printer software (RIP) has a powerful color adjustment function, and the required output quality can be obtained through the adjustment function.
5. As far as ink is concerned, it is not very important to have an ink curve or not. It is important to choose a truly high-quality ink. With the cooperation of a UV printer with excellent performance and software (RIP), fine-tuning the color through the software Can get excellent image output quality.
6. If the ink quality is not high, it is impossible to get good color quality! For truly high-quality inks, the color value of each color is closer to the color management standard. UV printers with excellent performance use high-quality special inks, even if there is no specific curve, conventional printing can output excellent print quality, and the inkjet program of excellent UV printers will follow the printing color standards when outputting patterns. Inferior inks that do not follow the printing color standards very well, the need for the color curve is more important, and the color difference during conventional printing is very large. But the fact is that even if there is a color curve, it often does not help much. Wanting poor quality ink to output excellent print quality is tantamount to letting a stallion to catch up with Qi Qi, even if it takes the power of nine cows and two tigers.
7. Three factors related to the core of inkjet print output quality: the printer itself, ink quality, software processing system, the perfect combination of the three can give the best color.
Back to the previous question, is the ink curve important in actual production?
Many users of UV flatbed printers will always ask the device software if they want to configure the ink curve before buying. Ink curve is not so important for personality printing and diversity printing. In mass production, only when printing a color, it is necessary to make an ink curve in a targeted manner, so that the printing effect is unified, which makes the ink curve important. If you use high-quality ink + high-performance printing equipment + excellent software combination, the color obtained will also be the ideal effect. Whether the UV printer gives the ink curve is not the basis for the UV printer itself and the evaluation of the quality of the ink. The ink curve is only a specific inkjet solution!
See here, I hope you can understand the meaning of the ink curve, buy regular manufacturers of UV printers and specially equipped high-quality ink, the print quality and quality can be guaranteed, and the ink is not prone to damage the nozzle. 
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